service installation scripts for ubuntu 10/12 and red hat 5/6
Improved pre-checks
Aligned variable names
Add Debug information about user calling _changes

Currently, the _changes feed doesnt add information about the authenticated
user making the call. Added that in the MultiChangesFeed method
Protected variables that are not to be resolved during template processing
Patch for different formats in /etc/redhat-release
Updated sync gateway version strings in stdout and HTTP Headers
Modified red hat upstart template to remove the need to install start-stop-deamon now uses 'exec su'
Added README.md
sync_gateway now returns a 204 status for OPTIONS method calls, this is in alignment with CouchDB
Updated test case to assert 204 response
Updated detection of OS/VER after issues on a real ubuntu server
Merge pull request #390 from couchbase/feature/issue_182

sync_gateway installation scripts and templates for Ubuntu 10/12 and Redhat 5/6, Feature/issue 182
Update README.md
Update README.md
Merge pull request #392 from couchbase/feature/issue_284

Return 204 status for OPTIONS method calls

Fixes #392
Merge pull request #389 from couchbase/feature/issue_383

Updated sync gateway version strings in stdout and HTTP Headers, fixes issue #383
Merge pull request #388 from rajasaur/debugmsg_changesfeed

Add Debug information about user calling _changes
Added 'Build From source' instructions back in
Code block formatted command line examples
Merge pull request #398 from couchbase/feature/issue_393

Added 'Build From source' instructions back in